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Breast Cancer Detection Using Low-Frequency Bioimpedance Device.

Sofiene Mansouri1,2, Tareq Alhadidi1, Marwa Ben Azouz2

  • 1College of Applied Medical Sciences, Department of Biomedical Technology, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.

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Summary

This study presents a noninvasive electrical bioimpedance device for early breast cancer detection. Significant differences in breast electrical resistance can indicate abnormalities, prompting medical consultation.

Keywords:
FPGA Virtex-5 LX30LabVIEW FPGANI PXI-7841Rbiomedical engineeringbreast cancer detectionelectrical bioimpedance

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Area of Science:

  • Biomedical Engineering
  • Medical Diagnostics
  • Electrical Engineering

Background:

  • Early breast cancer detection is crucial for survival.
  • Current detection methods are invasive.
  • Electrical bioimpedance offers a promising noninvasive alternative.

Purpose of the Study:

  • To develop and validate a noninvasive bioimpedance device for early breast cancer detection.
  • To assess the correlation between electrical resistance and physiological abnormalities in breast tissue.

Main Methods:

  • A low-frequency current (1 kHz, 0.9 mA) was applied to each breast to measure extracellular resistance.
  • The device compares resistance values between breasts, triggering a warning for significant differences.
  • Performance was validated using reference resistors, in vitro ionic solutions, and in vivo on 40 women.

Main Results:

  • Electrical conductivity of ionic solutions correlated strongly with concentration (R=0.97).
  • The system demonstrated satisfactory accuracy and repeatability for detecting small extracellular variations (from 0.6 g/l).
  • An in vivo threshold of 50 ohms was established to identify potential abnormalities.

Conclusions:

  • Differences in bilateral breast electrical resistance are a relevant indicator for early cancer detection.
  • The device can potentially identify the affected breast based on lower resistance.
  • Future integration into a bra is envisioned for enhanced usability.